Heat-insulated jug



FIG. 1 is a side elevational view of a heat-insulated jug showing my new design; the side opposite is a mirror image;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a longitudinal section thereof taken on the line 6--6 in FiG. 2. 

The ornamental design for a heat-insulated jug, as shown and described. 